Abstract: Methods and systems of synchronous sending are described for state sharing of UAV teams. Most state data of UAV is nonstationary time series, the state data collected or perceived by sensors of UAV is segmented automatically with changepoint detection methods in real time. Each segment is sliced non-uniformly, and all the data of each slice is summarized. The summary result of each slice is finally sent for sharing among UAV teams. The changing of state generation parameters of UAV flight or working can be discovered and the segments are non-uniformly sliced automatically in the invention. The shared data is sent in time when the state changes irregularly while it is sent at large intervals when the state changes regularly. The invention reduces the number of sending substantially and then decreases the bandwidth consumption of state sharing of UAV teams, without decreasing the real time of state sharing.

Abstract: Aspects of the invention include a non-destructive bond line thickness measurement of thermal interface material on silicon packages. A non-limiting example computer-implemented method includes receiving a chip mounted on a laminate and depositing a high-density material on the chip. The computer-implemented method deposits a thermal interface material on the chip and lids the chip, and the laminate with a lid. The computer-implemented method X-rays the lid, the chip, and the laminate to produce an X-ray and measures, using a processor, from the X-ray a bond line thickness of the TIM as a distance from a bottom of the lid to a top surface of the high-density material.

Abstract: A system for analyzing a volatile component in extraterrestrial soil through penetration heating induction includes the following: a penetration heater, provided therein with a volatile component measurement and analysis module configured to analyze a volatile component in a detected medium; a gas capture hole, provided on a side wall of the penetration heater and used to divert the volatile component in the detected medium to the volatile component measurement and analysis module; a temperature acquisition module, disposed on the penetration heater and configured to acquire a temperature of the detected medium; and a heating module, disposed on the penetration heater and configured to acquire the temperature of the detected medium. The system has a compact structure, a simple function, and low engineering costs, and can directly detect and analyze a volatile component in deep extraterrestrial soil.

Abstract: This application provides a permanent-magnet synchronous machine control method and device, and a permanent-magnet synchronous machine control system. The method includes: obtaining a d-axis current id and a q-axis current iq in a permanent-magnet synchronous machine control loop at a current moment; obtaining a fifth-order harmonic current id5th and a seventh-order harmonic current id7th in the d-axis current id in the permanent-magnet synchronous machine control loop at the current moment, and a fifth-order harmonic current iq5th and a seventh-order harmonic current iq7th in the q-axis current iq in the permanent-magnet synchronous machine loop at the current moment; determining a d-axis current idk+1 at a next moment in each switch state; determining a q-axis current iqk+1 at the next moment in each switch state based on the first current idk, the second current iqk, and the second voltage in each switch state; and determining a control policy of the permanent-magnet synchronous machine.

Abstract: This application provides a method and device for updating calibration data of an electric motor, an electronic device, and a storage medium. The method includes: obtaining an initial calibration datum of the electric motor; determining whether a deviation between the initial calibration datum and a theoretical calculation datum exceeds a first threshold; recalibrating the electric motor based on the preset calibration parameter when the deviation between the initial calibration datum and the theoretical calculation datum exceeds the first threshold, and obtaining an updated calibration datum; determining whether a deviation between the updated calibration datum and the initial calibration datum exceeds a second threshold; and updating the initial calibration datum based on the updated calibration datum when the deviation between the updated calibration datum and the initial calibration datum does not exceed the second threshold, thereby updating and rectifying the initial calibration datum.

Abstract: An on-orbit recycling method for a buffer foam of a cargo spacecraft includes the following steps: mechanically cutting a shaped PU foam into foam micro-blocks, and putting the foam micro-blocks into a packaging bag for packaging, where the packaging bag is filled with a foaming adhesive; the foaming adhesive includes a component A and a component B, which are independently packaged in a two-component packaging bag; and the component A and the component B are separated by a film; and squeezing the film between the component A and the component B, such that the two components are fully mixed, foamed and expanded to finally burst the two-component packaging bag, where after the packaging bag is burst, the foaming adhesive expands into gaps of the foam micro-blocks; and in a microgravity state of space, the foaming adhesive expands and fills uniformly in all directions and fully infiltrates the foam micro-blocks.

Abstract: Log messages are compressed, searched, and decompressed. A dictionary is used to store non-numeric expressions found in log messages. Both numeric and non-numeric expressions found in log messages are represented by placeholders in a string of log “type” information. Another dictionary is used to store the log type information. A compressed log message contains a key to the log-type dictionary and a sequence of values that are keys to the non-numeric dictionary and/or numeric values. Searching may be performed by parsing a search query into subqueries that target the dictionaries and/or content of the compressed log messages. A dictionary may reference segments that contain a number of log messages, so that all log message need not be considered for some searches.

Abstract: A method for forming a nanostructure includes coating an exposed surface of a base layer with a patterning layer. The method further includes forming a pattern in the patterning layer including nano-patterned non-random openings, such that a bottom portion of the non-random openings provides direct access to the exposed surface of the base layer. The method also includes depositing a material in the non-random openings in the patterning layer, such that the material contacts the exposed surface to produce repeating individually articulated nano-scale features. The method includes removing remaining portions of the patterning layer. The method further includes forming an encapsulation layer on exposed surfaces of the repeating individually articulated nanoscale features and the exposed surface of the base layer.

Abstract: A method, a computing system and a computer program product for collecting and labelling images includes capturing a video of an object with a camera. A movement trace of a pointer is recorded that outlines the object while capturing the video of the object. Further included is generating a labeled image based at least on the captured video of the object and the recorded movement trace of the pointer. The labeled image includes the object and a line that surrounds the object.

Abstract: A power supplier circuit supplies a power signal to a codec of an audio apparatus. The power supplier circuit includes a random sequence generation circuit, a control circuit, and a power circuit. The random sequence generation circuit generates a random sequence. The control circuit outputs a first control signal according to the random sequence, a first reference signal, and the power signal. The power circuit generates the power signal according to the first control signal, such that the power signal is spread in response to the random sequence.

Abstract: A method detects mechanical equipment parts. The method includes: obtaining an image of a part; extracting a feature from the image using a machine learning model, identifying a type of surface defect on the basis of the feature to obtain an identification result; and determining whether to replace the part on the basis of the identification result and a predetermined standard of the part. The method reduces the difficulty of detecting a part, can accurately identify a surface defect of the part and determine whether the part needs to be replaced, thereby improving the work efficiency, and shortens the time for mechanical equipment to stop operating for maintenance, thus improving the operating efficiency of the mechanical equipment. The method is automatically executed by a computer, thereby avoiding manually checking errors, improving the accuracy of detection results, and thus improving the reliability of operation of the mechanical equipment.

Abstract: This invention is related to automatic monitoring and collaboration among aircrafts. Specifically, an aircraft receives the current and future state of adjacent aircrafts by broadcast, then analyzes the start time of collaborative tasks. Base on the start time and prior knowledge, it adjusts automatically the prediction accuracy requirements of its future states, the check interval of predicted state errors and the minimum check interval. And it makes a new prediction and broadcasts new future states based on the check results of prediction errors. In the invention, an aircraft does not periodically broadcast its states, but broadcasts irregularly its future states according to its current tasks, its states and surrounding environment. The invention guarantees that collaborative tasks can be can be correctly carried out among aircrafts while it reduces the bandwidth requirement of wireless communication. It provides guarantee of high density flight and collaboration among many aircrafts.

Abstract: A PFM control circuit includes a switching circuit, a slope-decision circuit, a flip-flop, a first and a second comparison circuits. The first comparison circuit outputs a first signal according to an output voltage of a power conversion circuit. The switching circuit outputs a switching signal according to an output current of the power conversion circuit. The slope-decision circuit outputs a slope modulation voltage, and determines a slope modulation voltage with a first or a second slope according to the switching signal. The second comparison circuit outputs the second signal according to the slope modulation voltage. The flip-flop outputs a control signal to the power conversion circuit according to the first and the second signals. When the slope modulation voltage has the first or the second slope, the control signal has a first or a second frequency accordingly. The first frequency is higher than the second frequency.

Abstract: An ammonia fuel cell system and an electric device are described. The ammonia fuel cell system includes an ammonia decomposition reaction device, a heating device, a hydrogen fuel cell, a DC/DC converter and an inverter connected successively, a battery pack and a heat exchanger. The heat exchanger of the system, can preheat ammonia gas by energy generated by ammonia decomposition, thereby recycling heat waste. The battery pack supports a quick response and stable output to quickly cope with the acceleration and deceleration of the electric device. This improves the stability of the system operation, and electric energy generated by the hydrogen fuel cell or electric energy in the battery pack can be transferred to the outside. The battery pack or the heating device can provide energy to the ammonia decomposition reaction device, so there is no need to supply outside energy to the ammonia decomposition reaction device.

Abstract: A charging system includes: an input voltage supply circuit; a control circuit coupled to the input voltage supply circuit, configured to control the input voltage supply circuit to generate an input voltage according to a battery voltage of a target battery; and a charging circuit, coupled to the control circuit, configured to receive the input voltage and to provide a charging current to charge the target battery. The input voltage is generated according to a function that takes the battery voltage as a parameter. The input voltage is positively correlated with the battery voltage, and is greater than the battery voltage.

Abstract: Exemplary embodiments of the present disclosure provide a method and apparatus for automatically generating an advertisement, a device, a computer-readable storage medium, and a computer program product. The method for automatically generating an advertisement includes: obtaining, based on a field to which an object of the advertisement belongs, multimedia content reflecting attributes of the object, wherein the multimedia content comprises one of text content, image content, video content, and audio content; generating, based on the field and the attributes, text information describing the object; and combining the multimedia content and the text information to generate the advertisement.

Abstract: A method and apparatus for training a search model, and a method and apparatus for searching for a target object are provided. The method may comprise: obtaining, based on sample query information, a first sample data set used to train the search model. The method may further comprise: determining, based on a pre-constructed knowledge base, additional query information associated with the sample query information. In addition, the method may further comprise: obtaining, based on the additional query information, a second sample data set used to train the search model, wherein the second sample data set is different from the first sample data set. Moreover, the method may further comprise: training the search model based on the sample query information, the first sample data set, and the second sample data set.

Abstract: This invention is related to automatic monitoring and collaboration among aircrafts. Specifically, an aircraft receives the current and future state of adjacent aircrafts by broadcast, then analyzes the start time of collaborative tasks. Base on the start time and prior knowledge, it adjusts automatically the prediction accuracy requirements of its future states, the check interval of predicted state errors and the minimum check interval. And it makes a new prediction and broadcasts new future states based on the check results of prediction errors. In the invention, an aircraft does not periodically broadcast its states, but broadcasts irregularly its future states according to its current tasks, its states and surrounding environment. The invention guarantees that collaborative tasks can be can be correctly carried out among aircrafts while it reduces the bandwidth requirement of wireless communication. It provides guarantee of high density flight and collaboration among many aircrafts.

Abstract: A method of promoting compensatory plasticity of spared neural cells after a neural injury includes contacting the spared neural cells with an effective amount of a therapeutic agent comprising a therapeutic peptide, wherein the therapeutic peptide comprises an amino acid sequence with at least 70% identity to SEQ ID NO:32.

Abstract: Devices, systems, and/or methods that can facilitate plating one or more metal layers onto a niobium-titanium substrate are provided. According to an embodiment, a device can comprise a niobium-titanium substrate. The device can further comprise a first metal layer plated on a portion of the niobium-titanium substrate. The device can further comprise a second metal layer plated on the first metal layer. The device can further comprise a third metal layer plated on the second metal layer.